3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; $b = [ '5' => 'moo' ]; var_dump($b); unset($b[$a]); var_dump($b);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.70.0100.01316.58
8.3.60.0110.00416.48
8.3.50.0140.00320.16
8.3.40.0060.01321.64
8.3.30.0070.00718.42
8.3.20.0050.00324.18
8.3.10.0030.00524.66
8.3.00.0080.00026.16
8.2.190.0150.00616.58
8.2.180.0030.01325.92
8.2.170.0110.00418.83
8.2.160.0070.00722.96
8.2.150.0000.00725.66
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0000.00726.16
8.2.110.0030.00619.39
8.2.100.0110.00017.72
8.2.90.0030.00519.00
8.2.80.0090.00018.73
8.2.70.0000.00817.63
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0000.00918.15
8.2.30.0050.00317.92
8.2.20.0000.00719.11
8.2.10.0060.00318.03
8.2.00.0000.00719.11
8.1.280.0120.00925.92
8.1.270.0120.00324.66
8.1.260.0080.00026.35
8.1.250.0100.00028.09
8.1.240.0120.00422.05
8.1.230.0120.00021.02
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0000.00917.11
8.1.180.0000.00818.10
8.1.170.0090.00018.57
8.1.160.0000.00719.04
8.1.150.0000.00818.60
8.1.140.0040.00417.30
8.1.130.0000.00717.31
8.1.120.0040.00417.29
8.1.110.0000.00717.41
8.1.100.0040.00417.32
8.1.90.0110.00517.23
8.1.80.0080.00817.28
8.1.70.0060.00317.30
8.1.60.0120.00617.44
8.1.50.0150.00317.43
8.1.40.0110.00717.41
8.1.30.0150.00317.51
8.1.20.0110.00417.57
8.1.10.0110.00717.41
8.1.00.0110.00817.28
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0050.00318.29
8.0.270.0000.00716.79
8.0.260.0000.00616.71
8.0.250.0000.00616.78
8.0.240.0030.00316.87
8.0.230.0030.00616.77
8.0.220.0070.00716.70
8.0.210.0120.00216.63
8.0.200.0090.00616.71
8.0.190.0110.00416.88
8.0.180.0150.00016.77
8.0.170.0040.01116.73
8.0.160.0100.00516.75
8.0.150.0150.00016.77
8.0.140.0100.00316.64
8.0.130.0100.00416.70
8.0.120.0130.00316.62
8.0.110.0090.00516.77
8.0.100.0150.00016.82
8.0.90.0070.01016.73
8.0.80.0110.00416.79
8.0.70.0110.00516.74
8.0.60.0080.00816.80
8.0.50.0120.00316.79
8.0.30.0090.00616.62
8.0.20.0120.00416.79
8.0.10.0080.00816.89
7.4.330.0000.00415.55
7.4.320.0000.00716.57
7.4.300.0160.00316.48
7.4.290.0090.00916.58
7.4.280.0180.00016.50
7.4.270.0120.00416.35
7.4.260.0120.00616.52
7.4.250.0110.00416.59
7.4.240.0080.00816.48
7.4.230.0120.00416.46
7.4.220.0090.00516.47
7.4.210.0050.00916.38
7.4.200.0090.00516.56
7.4.190.0150.00016.52
7.4.180.0120.00316.57
7.4.160.0110.00416.46
7.4.150.0050.00916.47
7.4.140.0110.00416.43
7.4.130.0110.00416.21
7.4.120.0070.00716.39
7.4.110.0080.00616.27
7.4.100.0110.00216.58
7.4.90.0070.00716.49
7.4.80.0030.00616.37
7.4.70.0110.00316.36
7.4.60.0070.00716.42
7.4.50.0040.00816.34
7.4.40.0100.00316.37
7.4.30.0090.00516.37
7.4.20.0090.00016.36
7.4.10.0070.00216.32
7.4.00.0040.00816.33

preferences:
17.26 ms | 401 KiB | 5 Q